Police today sought the public's help in locating a woman who was last seen in South Los Angeles more than a week ago and who is in need of dialysis treatments.

Sandra Monroy, 49, was last seen about 5 a.m. May 10, in the 1200 block of East 34th Street, according to the Los Angeles Police Department. She is considered a “critical missing” person because she has missed two kidney dialysis appointments, police said.

Anyone with information on her whereabouts was urged to call the LAPD Missing Persons Unit at (213) 996-1800. After-hours or on weekends, calls should be directed to (877) LAPD-24-7. Anonymous tips can be submitted through Crime Stoppers by calling (800) 222-TIPS.